Features: Brand new and high quality 4 disk SSD for M.2 card, extended simultaneously for time, 4 x 32Gbps full-speed signal, with cooling fan. The cooling fan uses high-quality bearings, long lifespan, high efficiency, and quiet operation. Active cooling of NVMe SSD with fan ensures stable SSD operation, and SSD transfer speed won't drop due to high temperature. Supports 4 disks soft for RAID and performs soft RAID under WIN10. 4-disk sets offer excellent RAID performance and stability. We provide a full-speed experience and use imported high-efficiency DC chips to ensure stable operation of M.2 PCI-E and SSD devices. Standard PCI-e3.0 and PCI-e4.0 transfer speeds are supported. The product supports four channels X4 and PCI-E for M.2 full-speed NVMe SSD interface devices. The PCB board uses high-end materials, surface gold plating, with excellent conductivity, strong durability, oxidation resistance, and high fire resistance for protection. Specifications: Name: 4 sets NVMe RAID PCI-E X16 shared card Type: PH44F Hard disk support: For M.2 PCI-E SSD / For M.2 NVMe Protocol device Transfer speed: 4 x 32 Gbps Packaging size: Approx. 14.3x12x1.7cm/5.63x4.72x0.67in Note: Allow 0-1 cm tolerance due to manual measurement. Please ensure you don't mind before purchasing. Due to differences in screen settings, the color in the image may not reflect the actual object color. Thank you! Packaging includes: 1 x 4 sets NVMe RAID PCI-E X16 shared card + fan + bracket